Container vent



NOV. 17, 1936. HET N 2,060,866

CONTAINER VENT Filed July 19, 1932 y INVENTO R Fatented Nov. 17, 1936 UNITED STATES CONTAINER VENT Paul Hetenyi, New York, N. Y., assignor to Solar Manufacturing Corporation, a corporation of New York Application July 19, 1932, Serial No. 623,317

2 Claims.

It is the object of this invention to provide a container vent of an improved breather construction which will be particularly adaptable for use in connection with electrolytic condensers.

Another object of this invention is to provide a vent for an electrolytic condenser which will seal the condenser against the entrance of foreign matter, while at the same time permit the release of gases generated therein.

'A further object of this invention is to provide a vent or breather construction for electrolytic condensers comprising a diaphragm of thin sheet rubber in which are pierced small holes; said rubber being held in position underneath a per- Iorated cup-shaped extrusion of the container cover into which the rubber can expand to allow the release of gases generated within said container.

Another object of this invention is to provide a vent construction for electrolytic condensers comprising a cover for the electrolyte container having a perforated cup-shaped extrusion and av diaphragm of thin metal foil securely held in position underneath said cover; which, under slight gas pressure will be slightly expanded within the cup-shaped extrusion and under extreme gas pressure, will tear through to allow free escape for the gases without causing injury to the rest of the container.

With these and other objects in view, to be more fully set forth hereinafter, the invention consists in the novel construction, combination of elements and arrangements of parts which will be exemplified in the operation and construction herein described in the following speciflca tion and illustrated in the accompanying drawing.

The disclosure made the basis of exemplifying the present inventive concept suggests a practical embodiment thereof, but the invention is not to be restricted to the exact details of this disclosure, and the latter therefore is to be understood from an illustrative, rather than a restrictive standpoint.

The invention will first be described in connection with the drawing, wherein similar reference characters are used to designate corresponding parts throughout the several views, and more specifically defined and indicated in the appended claims. V

Attention is directed to the drawing, in which- Fig. l is an elevational view partly in section of an electrolytic condenser illustrating one embodiment of the invention;

Fig. 2 is an enlarged plan view 01' Fig. 1;

Fig. 3 is a sectional view taken on the line 3--3 of Fig. 2 and illustrates the vent construction employing the pierced rubber sheet diaphragm; and

Fig. 4 is a similar view of a modified form of bent construction employing a diaphragm of thin metal foil.

Referring more in particular to the drawing, the form of the invention herein shown by way of illustration includes the usual electrolyte container l preferably formed of copper or other suitable chemical resisting material. Mounted within the container and immersed in the electrolyte II is the anode I2. The upper end of the container has the inwardly spun shoulder it upon which the vent or breather is held in position. Referring more in particular to Fig. 3, it will be readily seen that the thin rubber sheet diaphragm H is held in position under the container cover i by means of its outer edge It being turned upward and around the turned over edge ll of the cover IS. The rubber diaphragm and the cover are securely held in airtight relation to the shoulder l3 by spinning down the extreme upper end It of the electrolyte container. Located in the center of the container cover I5 is the cup shaped extrusion l9 having the perforations 20.

To permit the escape of gases from the receptacle while preventing the entrance of air, the central portion of the rubber diaphragm l4 which underlies the cup-shaped extrusion I9 is provided with a plurality of small pin holes 2|. The size of these holes is such that when the diaphragm is in its normal relaxed position as shown in Figs. 1 and 3, they are closed by the natural resiliency of the rubber. When the pressure of gases evolved by the electrolyte increases, the diaphragm is flexed upwardly into the cup-shaped extrusion l9 as indicated by dotted lines in Fig. 3. This flexing of this portion of the diaphragm, stretches it, thus opening the holes 2|, and permits the gas to escape. When suilicient gas has escaped and the pressure reduced to substantially that of atmospheric pressure, the diaphragm returns to its normal position and the holes 2| close, again sealing the receptacle.

Referring to Fig. 4, which illustrates a modified form of vent, I provide a disc of very thin metal foil 22 which is chemical-resisting, oi a thickness of .0005" more or less, for instance, and which is securely held in position against the bottom of the cover l5 by the rubber gasket 23; said gasket being forced down tightly against the inwardly spun shoulder I3 by the spinning down of the extreme upper end l8 of the container Ill. Under light gas pressure in the conintothecnp-shaped extrusionoi the'coverasinpsesmredeveiop,tbediaphraamwilltearthroush I atthispoint andprovidetree eacape ln's'the gases. leaving the rest at thecondenser unin- In awordance with the provisions of thepaten statutes. I have described my invention. but I 10 desire it understood that it is not confined to the particular form shown and described, the same bein merely illustrative, and that the invention can be carried out in other ways without departin: from the spirit of my invention, 16 and therefore, I claim broadly the riaht to employ all equivalent instrumentalities comin: within the scope of the appended claims, and by means or which, objects of my invention are attained and new results accomplished, as it is U obvious that the particular embodiments herein ahownanddescribed are onlysomeoi manytbat can be employed to attain these objects and acoomplish these results.

Having now described my invention, what I ll claim and desire to protect by Letters Patent is:

Llnanelectrolytieeondenserconstructioma eontainernalid iorsaidcontainerhavlnaanolitwardlydirectedproteetiverecmanelasticdiaphrasm. cut from ilatsheet rubber. of uniform thicknessstretched'beneath saidlidwithonlyitl I peripheral edge ol'ampedbetween the contain: andthelid.said disphrasmbavinaaperiosationalinedwithsaidreeesasaidpericsationbsin: closedexcept when said diapbraam is listed the lid. said perforations beins'seli-clolns s:-

ceptwhensaiddiaphraamisflexedby aspsss sureintosaidcup-likerecess. 2

mm. m I 

